EP 3172851 B1 20201028 - SYSTEMS AND METHODS FOR AVERAGING IN FREQUENCY DOMAIN EQUALIZATION SYSTEMS
Title (en)
SYSTEMS AND METHODS FOR AVERAGING IN FREQUENCY DOMAIN EQUALIZATION SYSTEMS
Title (de)
SYSTEME UND VERFAHREN ZUR MITTELWERTBILDUNG IN FREQUENZBEREICHSENTZERRUNGSSYSTEMEN
Title (fr)
SYSTÈMES ET PROCÉDÉS DE MOYENNAGE DANS DES SYSTÈMES D'ÉGALISATION DE DOMAINE FRÉQUENTIEL
Publication
Application
Priority
- US 201462028266 P 20140723
- US 2015041823 W 20150723
Abstract (en)
[origin: WO2016014848A1] An example system comprises a first antenna and a modem. The first antenna is configured to receive a signal from a transmitting radio frequency unit. The signal includes data and a known sequence. The modem is configured to retrieve the known sequence from the signal, transform the known sequence and the data into a frequency domain, calculate averages of groups of neighboring frequency points in the frequency domain to reduce the effect of nonlinear noise in the signal, the neighboring frequency points corresponding to the preamble in the frequency domain, compare the calculated averages to an expected frequency response in the frequency domain, determine a correction filter to apply to the data based on the comparison, apply the correction filter on the data in the frequency domain to create corrected data, transform the corrected data from the frequency domain to the time domain, and provide the data.
IPC 8 full level
H04B 17/12 (2015.01); H04L 25/02 (2006.01); H04L 25/03 (2006.01)
CPC (source: EP US)
H04B 1/123 (2013.01 - US); H04J 4/005 (2013.01 - US); H04L 25/0204 (2013.01 - EP US); H04L 25/0228 (2013.01 - EP US); H04L 25/03159 (2013.01 - EP US); H04L 27/366 (2013.01 - EP US); H04L 25/022 (2013.01 - EP US); H04L 27/2613 (2013.01 - EP US); H04L 27/2647 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2016014848 A1 20160128; EP 3172851 A1 20170531; EP 3172851 A4 20180411; EP 3172851 B1 20201028; SG 11201700460S A 20170227; SI 3172851 T1 20210226; US 10153798 B2 20181211; US 10505573 B2 20191210; US 11005510 B2 20210511; US 2016028426 A1 20160128; US 2018034491 A1 20180201; US 2019173504 A1 20190606; US 2020112327 A1 20200409; US 9787338 B2 20171010
DOCDB simple family (application)
US 2015041823 W 20150723; EP 15825505 A 20150723; SG 11201700460S A 20150723; SI 201531439 T 20150723; US 201514807618 A 20150723; US 201715728472 A 20171009; US 201816216818 A 20181211; US 201916705082 A 20191205